Improvement in sewing-machines



lof the stitch made with three'threads.

-' 4UNITED STATES t lrtrlstvr OFFICE.

JONES, or imooKLrn, AND r.

IMPROVEMENT IN iipecilication forming part of Letters Patent N0.,32,297, dated May 14, lsll. i

To all 'whom it may concern:

Be it known that we, WILLIAM JONES, of the city of Brookiyn, Kings county, and State ot'New York, and PATRICK HAUGnIAN, ot the city, county, and State ot'v New- York, have invented new and useful Improvements in Machines for Sewing Clot-h, Leather, Sac.; andT we hereby declare. that the following is a. fuil=V and exact description thereof, reterence being had toA the accompanying drawings, makin-g part hereof, in whieh- E' `.Figure iis a frontview, of the 'machiney above the becl-plate ;Y Fig. 2, a front viewtof fthe shuttle, shuttle-box, and mechanism for voperatingth'eshuttle; Fig. 3, a. .side view-ofthe show the parts beyond it Fig. 5, a-Side view from the right ot' the needle, and ofgthefork andguide for opening the loops for the'shuttlej Fig. 6, an enlarged view o f the needle f rom. the right side Fig'. 7, atop .view of the shuttie and shuttledriver; Fig. 8,a view oftlie stitch made with two threads; Fig. 9, aview `Like letters indicate the same parts .0n all theii'gures.

Intheaccompanyin g drawings, B is the bedplate. M is the-needle; A, the needlearmnd Stile spool Iholding. the'tlneadfor the'needle.

pp p are standards erected atxthe hack of the bed-plate.. These standards support the arm O ofthe presser, and also act asA guidesA to theiieedle-arm. .l b b are two triangular plates of brass with their corners notched, and vwhich are iirmly held 1n their, relative position to each other by' the rods r r. These plates are-.iliade to tit between the standards p` p p, so that the notches intheir corners will receive them, and

so that the standards iviil hold the said plates Y laterally in position, leaving'thcm capable of rising and failing, guided by said standards. lo the upperof these triangular plates the back end ot' the needlearm is tirmlyL-attached,

nAUeHIAN, or nmifrom, n.

sewlNG-MAoi-nhes.

p p p and the triangular crosshead b b r r.

through slots in thc lower triangular plate and in the bed-plate.

The bobhin, which holds thencedlethrcad, is seen at S, supported by two standards at;

tfis the' ten sorspring for taking upthe thread as the needle is witlnlra'wn.

chain, the outer edges ot' whose links are toothed orronghened. 4rihis chain :is-'scenat liz and is supportati b v the toothed wheel J and the two friction-wheels i il The teeth oi" the wheel J enter between the links oi' Vthe feed* chain and drive it when theI wheel moves. This wheel is` iirmly attached to the short shai'to.

wheel, lt, through which an intermittentinotion is given to the shaft o, and thence to the toothed wheel J, andthenre to the feed-chain.

fo'llwing'mechanism z.

. A lever, 1is hung' loosely on the shaft o, the

outer end of which is held upward toward the tothis lever is a. springdt-ig, whose spring presses the lower end ot the dog against. tho teeth of the ratchet-wheel it. The wiper zr is firmly attacl running parallel to the'inainshat't, and placed under the bed-plate near its heft side, and supported by a box, B', hangingdownward from the bedplate. At' the back end otl this shalt -an arm, a, iirmly attachedthereto, extends downward, inclined toward and resting` against the eccentric .r on the main shaft. With this arrangement itis obvious that when thc main shaft revolves, starting with the arm a against the lowest point of the eccentric,l as in Figui, the-eccentric will press the 'arm a. toward. fit-o left of the machine, turning the shaft c, and bringing the wiper l'1u do\\-'n\va.rd, carlyingthc lever 4Iy with it, which, by the action offiilro side of `the hed-plate, aud'iis capable of being arm, with its needle, will be elevated and de-4 pressed, while itis guided bythe standards The connecting-rod or pitman n worlrsf ;the' back end of the presser-bar, and the de. tent isa commonspring, c, Aprtess'iteg; upon thread on the bobbin.

The-clotli-fcmling is eii'ectcd by an emiless Firmly attached to the same shaft,o,isa ratchct- Y Motion is given to this rai -.l1ct-whecl by theV left by-.a spring, it, against a wiper, 1r. Jointcd led to a-shat't, er,

spring-dog y, will carry the ratchetjwlicll'ltpartially around, and thence tlio ,i etgtll l1hittliforj Th'ebpx' B' is fastened iiiafslotncar the left slid from right to left, nndis fastened, when edjusted, by s. set-screw.- It isobvious thet this adjustment will adapt the feed to shorter or longer stitches.

The eccentric d givesniotion to the shuttle through the iolloningineoheuism The eccentric d is fastened rinly luy-e set-screw'. Upon the mein slieft S. e poke, y., is jointed below the main sliei't to e. hanger, h, frein the bedplnte, within which yoke the eccentric d Works.

A strip of metal, in, bentinto -the form of three.

'sidesoi' e rectangle, connects the upper ends ot the yoke. reaching forward nboie the man] shaft, and having s piny si'. the middle of the iront part ci' the strip. Yllhis piu enters n slot, cut lengthwise in an arm, m', which extends upwnd und Works i'reely onl the mein shalt. To the upper end of 'thiserin isjointed e connectingjrod, if', Whose other extremity is jointed to e. slide-,@,Working in and thi ough the beck oi' the' shuttle-box, and holding the shuttie-driver n. V is the snuit-leben; S4, the shutile.' lt is obvious than; as the inniu shiiit re volves .the eolie ywill vibrate frein right to left, giving e. similar vibration to the erin' mi, end thence through the connecting-rod rto Athe slide, shuttle-carrier, and shuttle.

' 'The needle used in our ninchino is similar to other` eyepointed needles, except that it is ehernfered ed near the point on the front side,

or side opposite to the shuttle-race, so es to carry the point thereof entirely tothe back side of the needle, as seen particularly in Fig. 6', und the perihrntion for the eye, when theneedle is in position, is vnein-lyin the direction of the .motion of theehutle, es seen in the (leanings. The shuttle', therefore, would Anot pass between the needle and the thread or through the loop,

l. .unless the loop were carried back ofthe needle.

'loegd'ect this object we resort tothe following mechanism :v

1li is n. bent lever, whose 'ulcrum is nt H, oneextreinity of Vwhich rests against the earn K and the other holds theiork fend the guide g', which f may beL adjusted lnternlly in any Wellfknown wey. As the needle descends, the cern K, pressing egeinstthe top of the lower 'end oi' the lever G, carries its upper' end, with the guideA nndt'onk, backward, and thelgnide,

coming against the left ot' thefneedle, guidesnud sieedes it, so that the lett prong of the forli, dist-unt. from the guide the dinrneter of Athe needle, `tjvill trike the thread onthe right side oi'fthe needle and curry it backward, opening e loop for the shuttles shown in Fig. 5, and when the shuttle has passed through the loop 'the lower end ot' the bent lever, coming lcor-istnntly upon the lower perf.l of the cern, will allow the spring F to drew the upper end ofthe lever, with the fork nnd guide, forward tothe position Ashown in Fig. 3, entirely i'reeing them from the needle and the thread.

The fork has eneedle-eye .neer its end, as, shown in Fig. 5. Through-this eye e thread v i'roin a bobbin, s', may be passed, which, in the,

reenlnr operation. oi"

"ngwi he worked nu ornamental npwenn" into thestitoh, fir-.ideen pearsnee.

e When thepoint of the needle is oliseni'ered off, es described, the needle-thread, being` so much farther in front than the needle-point.

will always ooineon 'the front of it, or on the v side opposite to the shuttle. and. this 4is the object ot' giving thisi'orrnrto the point. Without this or its equivalent the peculiar stitchA Vwould not be produced.

The feed should he from Z- toward Z, Fig.

'2, the thread passing through the needle-eye in the opposite direction. The i'eed will then drew the thread between the cloth and needleeye toward Z, and by virtue oi the side point oi' the needle this .threedwilh when the needle descends, come in front ot' the needle, :und extend round from the cloth to the Z side olf-said' needle, ns shownet ll, Fig. lil, which is n, side View of needle and its thread on the Z side. rlheA fori; then seizes this necdlethrend nud carries it backward, forming nloop, so that the seid thread extends 'from the cloth around the front and Z side ci' the needless shown'ut 2 2 2, liig. lll. The shuttle-thread is. thenv .passed through seid loop, end is shown at 4,

Fig. lo. IEhe needle then, being;` drawn up to position No. 2, Finn-id, draws that pnrt ofthe needlethrezid nearest the eye up betweenl the needle end. the other part ofthe loop, es shown et 3 3 3, Figrld, so that et the .t'eed for the next stitch the IFeedle-threed `will trike n bightlup- `between it and the eye.

Having fully described our improveinehts, what we claim as our invention, and desire to secure by Letters Patent, isl lL llhe side`=pointet-lA needle, as described.

2. The combination ot' the needle with the fork and shuttle, es described.

3. The 'combination oi the guide with the fork and needle, as described.4

d. Thecombination of the feed-chain with the fork and needle, es described.

5. Retaining the needle-thread in nniliiug the stitch on the side of the needle opposite to thesbuttie, substantially ns set `forth.

WILLIAM YJONES l). HAUGHIAN.

in presence of- W. P. N. FITZGERALD, JAS. E. WEST. 

